From: Tvrtko Ursulin <[email protected]> Explain behaviour of the new control knob along side the existing perf event documentation.
Signed-off-by: Tvrtko Ursulin <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Madhavan Srinivasan <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Alexey Budankov <[email protected]> Cc: [email protected] Cc: [email protected] --- .../testing/sysfs-bus-event_source-devices-events | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-events b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events index 505f080d20a1..b3096ae9be6f 100644 --- a/Documentation/ABI/testing/sysfs-bus-event_source-devices-events +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events @@ -92,3 +92,17 @@ Description: Perf event scaling factors This is provided to avoid performing floating point arithmetic in the kernel. + +What: /sys/bus/event_source/devices/<pmu>/perf_event_paranoid +Date: 2018/06/26 +Contact: Linux kernel mailing list <[email protected]> +Description: Per PMU access control file + + This is the per PMU version of the perf_event_paranoid sysctl + which allows controlling the access control level for each + individual PMU. + + Writes to the sysctl will propagate to all PMU providers. + + For explanation of supported values please consult the sysctl + documentation. -- 2.17.1
